Science

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Across
  1. 3. DIY energy makers
  2. 7. Always on the lookout not to end up on the menu
  3. 10. Ultimate hunters cruising the ecosystem
  4. 11. Green thumbs of the ecosystem
  5. 12. Not-so-friendly neighborhood bacteria
  6. 13. Freeloaders relying on others for a meal
  7. 15. Tight friendship where everyone's a winner
  8. 18. Living together with one buddy benefitting
  9. 19. VIP section for eaters
  10. 20. Meat lovers ready for a feast
Down
  1. 1. Plants turning sunlight into food like green wizards
  2. 2. Plant's solar power station
  3. 4. All-you-can-eat buffet enthusiasts
  4. 5. Pyramid of power for living stuff
  5. 6. Salad party enthusiasts
  6. 8. Antibiotic hero fighting off nasty infections
  7. 9. Ultimate dinner lineup
  8. 14. Breathing for all living squad
  9. 16. Tangled web of who eats who
  10. 17. Tiny life superheroes